Writing Naked Puts: A Complete Guide

Overview

A summary of Mark D. Wolfinger's Writing Naked Puts (Volume 1 of "The Best Option Strategies" series). Naked puts are a bullish strategy — less risky than owning stock outright — that profits if the stock rises, stays flat, or drops slightly. Often mislabeled as very risky, it's actually a conservative tool when managed properly; the real danger isn't the option, it's the risk-insensitive trader.

The Strategy: Two Ways to Win

• Earn Trading Profit — sell a put, collect the premium, and hope it expires worthless. Ideal in neutral to mildly bullish markets.
• Buy Stock at a Discount — sell a put at a strike you're happy to own the stock at; if assigned, you buy at your predetermined price, effectively at a discount (strike price minus premium received).

Key decisions: choose a stock you genuinely want to own; strike price is a trade-off (farther OTM = lower premium but lower assignment risk and higher win probability; closer to the money = higher premium but higher assignment risk); expiration date is a trade-off (shorter term = lower premium but higher annualized return via faster theta decay and more gamma sensitivity; longer term = higher premium/protection but lower annualized return).

Synthetic equivalence: writing a naked put has the exact same risk/reward profile as writing a covered call — a fundamental concept in options trading.

Risk & Management

Primary risk: the stock falls significantly, just like owning it outright. The premium collected provides a buffer — the stock must fall below (strike price − premium) before an unrealized loss occurs.

Repair strategies when a trade goes wrong: do nothing (valid if still content to own the stock at your effective price), close the position (buy back the put to lock in a loss and stop further damage), or roll the position (buy back the current put, sell a new one at a lower strike and/or later expiration). Crucial tip: do not stubbornly refuse to take a loss — the loss has already occurred whether or not you close the position. Only roll if the new trade is one you'd make as an independent decision.

Trading expenses: commissions matter given the frequent trading involved. Example: selling one put for $0.55 ($55) with a $15 commission and$20 assignment fee shrinks net profit to just $20. Solutions: a less expensive broker (best option), trading slightly more contracts, or writing higher-premium options ($1.50+).

Margin requirements (non-cash-secured puts): 20% of the underlying stock's value, plus the premium collected, minus the amount the put is out-of-the-money. Example: 10 contracts, $28 stock,$25 strike, $1.00 premium →$5,600 (20% of stock value) + $1,000 (premium) −$3,000 (OTM amount) = $3,600 required margin.

After assignment: don't just hold and hope — move to writing covered calls, the synthetic equivalent of selling a naked put, as the logical next step to keep generating income from the new shares.

Getting Started

Step 1 — Preparation: build a watchlist of stocks you want to own and target prices; monitor put prices with limit orders; understand technical support levels. Tip: add commission cost to your target premium to hit an effective purchase price. Tip: write puts slightly above a support level — if it holds, you profit; if it breaks, you get an early exit warning.

Step 2 — Thought process: the investor's view (“I'll either own shares at my target price, or keep the premium — I'm a winner either way”) versus the trader's view (“I'm giving up larger profit potential for a better chance to earn any profit in a range-bound market”) — same trade, different rationale depending on your goal.

Trader-specific tips: avoid very low-priced options (under $0.10 — the reward doesn't justify the capital risk); be wary of weeklys (small premiums, large percentage losses from minor moves, need active management); most traders favor front-two-month expirations for faster theta.

Step 3 — At expiration: if OTM, usually best to do nothing and let it expire worthless (capital frees up Monday); don't sell new puts on the same stock before old ones are covered. If ITM, three choices: cover (close for a realized profit/loss), allow assignment, or roll (buy back and sell a new put, usually later-dated and lower-strike). Never roll just to stay active — only if the new trade is attractive on its own merits.

Key Takeaways

• The book's two "wins" framing (earn premium or buy stock at a discount) is what distinguishes this from simple speculation — every outcome of a naked put sale is defined in advance as acceptable, which is the actual source of its "conservative" classification despite the unlimited-downside-sounding name.
• The margin formula example reveals a non-obvious mechanic: OTM amount is subtracted from the requirement, meaning the margin requirement shrinks as a put moves further out-of-the-money — the position that's statistically safest to hold also ties up the least capital.
• The investor-vs-trader dual perspective on the same UVW example is the book's way of showing that "correct" strategy selection depends entirely on your objective (owning the stock vs. generating income in a range-bound market), not on some universally optimal strike/expiration choice.

Related Reading

• Writing Naked Puts: A Complete Guide